What is a common issue with CSST in older installations?

The issue of improper bonding is particularly significant in older installations of corrugated stainless steel tubing (CSST). Bonding is essential for safety, as it helps to mitigate risks associated with electrical faults. Older CSST installations may not have been bonded correctly to the grounding system, which can lead to dangerous situations such as the potential for electrical arcing or even fires. Proper bonding ensures that any electrical energy is safely diverted to the ground, preventing the risk of ignition in the presence of gas leaks.

While factors such as improper installation techniques, inadequate venting, and corrosion due to age may also be concerns in CSST systems, the focus on improper bonding highlights a critical safety aspect that specifically relates to the electrical grounding of the gas piping system, making it a common and notable issue in older installations.